Lec3S09Heredity1

Lec3S09Heredity1 - Lecture 3 (9/27/08) Genes, attitudes...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 3 (9/27/08) Genes, attitudes & temperament Summarize last lecture How can genes influence attitudes? How is it possible for identical twins to differ in important biological and psychological ways?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Last Lecture Questions/Answers When did scientific psychology start ? End of 19 th century Why then? A consequence of Darwin’s theory and physiological research that pointed to importance of learning in basic processes, such as perception and digestion What did Darwin say about evolution and what are its implications for psychology? Darwin proposed that evolution occurred by natural selection. Implications: all psychological phenomena have a biological basis, follow laws of nature, and can be studied scientifically
Background image of page 2
According to the lecture what accounted for the delayed arrival of experimental psychology A = technology B = lack of interest C = the idea that the mind and body existed in different spheres
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Next topic: The role of heredity in psychology Provide a framework for understanding how genes influence psychological traits How is it possible for genes to influence beliefs and attitudes (recall religious beliefs study)? How is it possible for identical twins who grow up together to have different psychiatric and non- psychiatric medical histories? Implications of genetic influence on human behavior for understanding of individual choice---which in turn has implications for social policy
Background image of page 4
An “early” theory: Traits Research: a subcellular factor: DNA DNA: the blue print for synthesizing proteins & other biological building blocks Examples: photosensitive proteins in retina, enzymes for metabolizing alcohol You do not inherit “traits,” just instructions What do you inherit?
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The idea that genes provide a complete and sufficient account of human nature is still with us Walter Gilbert (1991) in a book celebrating the genome project: “When we have the complete sequence of the human genome ‘we will know what it is like to be human.’” (Cited in Lewontin, 2000) This is misleadingly simplistic. The pathway from genes to biological functions and psychological traits depends on experience and environment---DNA is but one part of the story of “inheritance” and genetic influence.
Background image of page 6
Gene expression Gene expression is the process by which DNA is made into a functional biological unit, such as a protein.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 27

Lec3S09Heredity1 - Lecture 3 (9/27/08) Genes, attitudes...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online